Expansion joint form



Aug. 2, 1932.

w. P. MAUTZ ET AL EXPANSION JOINT FORM Filed Nov. 22, 1929 2 Sheets-Sheet l Aug. 2, 1932. w. P. MAUTZ ET AL EXPANSION JOINT FORM Filed Nov. 22. 1929 2 Sheets-Sheet 2 Q @ZikWZP/fiZ/ZZ, r 7/ 645 (7/ 672.

ATTORNEY Patented Aug. 2, 1932 UNITED STATES r ce WILLIAM P. 'MAUTZ, OF LEBANON, AND FRED IB. OREN, OF EFFINGHAIQ, ILLINOIS,

EXPANSION JOINT FORM Application filed November 22, 1929. Serial No. 409,154.

This invention relates to expansion joint forms for road construction, walks and the like, wherein the roads are made of concrete or suitable material which is subject to expansion and contraction, so that the road is constructed in sections with the adjacent ends of the sections spaced apart. The space between the ends of the sections is filled with a suitable filler which will allow for eX- pension and contraction ,of the road sections. 7

An object of the present invention is to provide a collapsible form which may be positioned to form abutments or walls at the ends of the concrete sections, and thus leave a space for the filler, the construction of the form facilitating its proper positioning for use and its removal after the road has been laid.

A further object of the invention is the provision of a form, which in addition to the above and other advantageous features, is of sectional formation, so that the sections may be arranged in a length conforming to the width of the road, means being provided for covering the space between the walls of the form, which means also acts to hold the sections of the form in proper alignment.

With the above and other objects in view, the invention further includes the following novel features and details of construction, to be hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the appended claim.

In the drawings Figure 1 is a fragmentary perspective view showing one end of a form constructed in accordance with the invention.

Figure 2 is a top plan view. showing a form composed of three sections.

Figure 3 is a side elevation of the same.

Figure 4 is an enlarged transverse sectional view showing a portion of a roadway with the form in end elevation.

Figure 5 is a fragmentary top plan view of a portion of the form with parts shown in section.

Figure 6 is a fragmentarysectional view through a portion of the roadway and formed with the cover plate in position.

Figure 7 is an end view illustrating one of the plates and the lugs carriedthereby.

vide walls at the ends of the road sections,

portions of which are indicated at B.

The plates 10 have extending therefrom upper and lower lugs 11 and 12 respectively and these lugs are arranged in overlapping contact when the form is assembled. The

lower lugs 12 are provided with openings 13 which removably receive pins 14: which serve to hold the lower portions of the plates in proper spaced relation. The upper lugs 12 are provided with elongated slots 15 for the passage of bolts 16, and these bolts receive nuts 17. The lugs 11 may thus be clamped together to properly space the upper portions of the plates.

In arranging the formfor use, the lugs 12 are connected by the pins 14 while the bolts 16 connect the lugs 11. The upper portions of the plates may be relatively adjusted so as to properly space these upper portions, the bolts and nuts serving to hold the plates in their adjusted position. In removing the form, the pins 14 may be removed and the nuts 17 loosened to permit relative inward movement of the plates without entirely disconnecting the plates. 7

As will be seen from the drawings, the lugs 11 extend horizontally between the plates and are spaced from the upper edges of said plates, and positioned between the plates upon these lugs are cover plates 18. The plates 18 are also of sectional formation, the sections being so arranged as to break joints with the joints of the sections A of the form. These plates 18 thus not only serve to close the trough provided between the plates, but also serve to hold the section A in proper alignment.

Additional lugs or brackets 19 may extend inwardly from the plates 10 with their upper faces so spaced from the upper edges of the plates as to provide rests for the plates 18. The plates 18 are thus securely supported in position between the plates 10 and act to prevent dirt and debris from falling into the trough between the plates.

The invention is susceptible of various changes in its form, proportions and minor details ofconstruction and the right is herej" in reserved to make such changes as properly fall within the scope of the appended "claim. 'HaVing described" the "inv'e1'itio1r what is claimed is A removable expansion joint form for road construction comprising spaced plates,

pairs of upper and lower "lugs extending" from said plates and each pair of lugs having overlapping relation and the lower p airs of lugs having; aligned apertures and the-upper pairs of lugs having aligned-slots,';pins-extendingthrough/the apertures ofthe lower- Y lugs to pivotjally connect said low'er lugs,

bolts extendingthrough-theslots to adjustably connect the upper lugs,- nuts on the bolts; I and covers supported bythe-upperlugs be tween' the plates.

In testimonywhereof we aflix our sigmatures.- a. a V t- WILLI M P- :MAEUT FREDB. OREN; 

